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NAME	SIZE	ACTIONS
📁 9p		[ DEL ]
📁 bluetooth		[ DEL ]
📁 caif		[ DEL ]
📁 iucv		[ DEL ]
📁 mana		[ DEL ]
📁 netfilter		[ DEL ]
📁 netns		[ DEL ]
📁 nfc		[ DEL ]
📁 phonet		[ DEL ]
📁 sctp		[ DEL ]
📁 tc_act		[ DEL ]
📄 6lowpan.h	10,271 B	[ EDIT ] \| [ DEL ]
📄 Space.h	1,094 B	[ EDIT ] \| [ DEL ]
📄 act_api.h	9,478 B	[ EDIT ] \| [ DEL ]
📄 addrconf.h	13,826 B	[ EDIT ] \| [ DEL ]
📄 af_ieee802154.h	1,591 B	[ EDIT ] \| [ DEL ]
📄 af_rxrpc.h	2,976 B	[ EDIT ] \| [ DEL ]
📄 af_unix.h	2,272 B	[ EDIT ] \| [ DEL ]
📄 af_vsock.h	7,295 B	[ EDIT ] \| [ DEL ]
📄 ah.h	382 B	[ EDIT ] \| [ DEL ]
📄 arp.h	2,052 B	[ EDIT ] \| [ DEL ]
📄 atmclip.h	1,515 B	[ EDIT ] \| [ DEL ]
📄 ax25.h	14,999 B	[ EDIT ] \| [ DEL ]
📄 ax88796.h	1,488 B	[ EDIT ] \| [ DEL ]
📄 bareudp.h	333 B	[ EDIT ] \| [ DEL ]
📄 bond_3ad.h	9,629 B	[ EDIT ] \| [ DEL ]
📄 bond_alb.h	6,251 B	[ EDIT ] \| [ DEL ]
📄 bond_options.h	3,916 B	[ EDIT ] \| [ DEL ]
📄 bonding.h	20,225 B	[ EDIT ] \| [ DEL ]
📄 bpf_sk_storage.h	1,802 B	[ EDIT ] \| [ DEL ]
📄 busy_poll.h	4,973 B	[ EDIT ] \| [ DEL ]
📄 calipso.h	2,199 B	[ EDIT ] \| [ DEL ]
📄 cfg80211-wext.h	1,900 B	[ EDIT ] \| [ DEL ]
📄 cfg80211.h	325,844 B	[ EDIT ] \| [ DEL ]
📄 cfg802154.h	11,175 B	[ EDIT ] \| [ DEL ]
📄 checksum.h	4,850 B	[ EDIT ] \| [ DEL ]
📄 cipso_ipv4.h	8,399 B	[ EDIT ] \| [ DEL ]
📄 cls_cgroup.h	2,301 B	[ EDIT ] \| [ DEL ]
📄 codel.h	6,000 B	[ EDIT ] \| [ DEL ]
📄 codel_impl.h	8,500 B	[ EDIT ] \| [ DEL ]
📄 codel_qdisc.h	3,001 B	[ EDIT ] \| [ DEL ]
📄 compat.h	1,711 B	[ EDIT ] \| [ DEL ]
📄 datalink.h	619 B	[ EDIT ] \| [ DEL ]
📄 dcbevent.h	1,293 B	[ EDIT ] \| [ DEL ]
📄 dcbnl.h	5,267 B	[ EDIT ] \| [ DEL ]
📄 devlink.h	64,711 B	[ EDIT ] \| [ DEL ]
📄 dn.h	7,046 B	[ EDIT ] \| [ DEL ]
📄 dn_dev.h	5,488 B	[ EDIT ] \| [ DEL ]
📄 dn_fib.h	4,077 B	[ EDIT ] \| [ DEL ]
📄 dn_neigh.h	968 B	[ EDIT ] \| [ DEL ]
📄 dn_nsp.h	5,966 B	[ EDIT ] \| [ DEL ]
📄 dn_route.h	4,500 B	[ EDIT ] \| [ DEL ]
📄 drop_monitor.h	901 B	[ EDIT ] \| [ DEL ]
📄 dropreason-core.h	12,063 B	[ EDIT ] \| [ DEL ]
📄 dsa.h	16,605 B	[ EDIT ] \| [ DEL ]
📄 dsfield.h	1,139 B	[ EDIT ] \| [ DEL ]
📄 dst.h	13,989 B	[ EDIT ] \| [ DEL ]
📄 dst_cache.h	2,596 B	[ EDIT ] \| [ DEL ]
📄 dst_metadata.h	5,521 B	[ EDIT ] \| [ DEL ]
📄 dst_ops.h	2,564 B	[ EDIT ] \| [ DEL ]
📄 erspan.h	8,527 B	[ EDIT ] \| [ DEL ]
📄 esp.h	1,190 B	[ EDIT ] \| [ DEL ]
📄 espintcp.h	966 B	[ EDIT ] \| [ DEL ]
📄 ethoc.h	537 B	[ EDIT ] \| [ DEL ]
📄 failover.h	1,178 B	[ EDIT ] \| [ DEL ]
📄 fib_notifier.h	1,476 B	[ EDIT ] \| [ DEL ]
📄 fib_rules.h	5,728 B	[ EDIT ] \| [ DEL ]
📄 firewire.h	636 B	[ EDIT ] \| [ DEL ]
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📄 flow_dissector.h	11,284 B	[ EDIT ] \| [ DEL ]
📄 flow_offload.h	17,797 B	[ EDIT ] \| [ DEL ]
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📄 gro_cells.h	443 B	[ EDIT ] \| [ DEL ]
📄 gtp.h	633 B	[ EDIT ] \| [ DEL ]
📄 gue.h	3,311 B	[ EDIT ] \| [ DEL ]
📄 hwbm.h	937 B	[ EDIT ] \| [ DEL ]
📄 icmp.h	1,765 B	[ EDIT ] \| [ DEL ]
📄 ieee80211_radiotap.h	23,017 B	[ EDIT ] \| [ DEL ]
📄 ieee802154_netdev.h	9,358 B	[ EDIT ] \| [ DEL ]
📄 if_inet6.h	6,591 B	[ EDIT ] \| [ DEL ]
📄 ife.h	1,057 B	[ EDIT ] \| [ DEL ]
📄 ila.h	498 B	[ EDIT ] \| [ DEL ]
📄 inet6_connection_sock.h	976 B	[ EDIT ] \| [ DEL ]
📄 inet6_hashtables.h	3,746 B	[ EDIT ] \| [ DEL ]
📄 inet_common.h	2,614 B	[ EDIT ] \| [ DEL ]
📄 inet_connection_sock.h	11,981 B	[ EDIT ] \| [ DEL ]
📄 inet_ecn.h	8,071 B	[ EDIT ] \| [ DEL ]
📄 inet_frag.h	4,816 B	[ EDIT ] \| [ DEL ]
📄 inet_hashtables.h	13,847 B	[ EDIT ] \| [ DEL ]
📄 inet_sock.h	9,828 B	[ EDIT ] \| [ DEL ]
📄 inet_timewait_sock.h	3,926 B	[ EDIT ] \| [ DEL ]
📄 inetpeer.h	3,372 B	[ EDIT ] \| [ DEL ]
📄 ip.h	21,221 B	[ EDIT ] \| [ DEL ]
📄 ip6_checksum.h	2,981 B	[ EDIT ] \| [ DEL ]
📄 ip6_fib.h	13,766 B	[ EDIT ] \| [ DEL ]
📄 ip6_route.h	9,220 B	[ EDIT ] \| [ DEL ]
📄 ip6_tunnel.h	5,096 B	[ EDIT ] \| [ DEL ]
📄 ip_fib.h	14,290 B	[ EDIT ] \| [ DEL ]
📄 ip_tunnels.h	14,697 B	[ EDIT ] \| [ DEL ]
📄 ip_vs.h	49,407 B	[ EDIT ] \| [ DEL ]
📄 ipcomp.h	659 B	[ EDIT ] \| [ DEL ]
📄 ipconfig.h	811 B	[ EDIT ] \| [ DEL ]
📄 ipv6.h	32,741 B	[ EDIT ] \| [ DEL ]
📄 ipv6_frag.h	3,321 B	[ EDIT ] \| [ DEL ]
📄 ipv6_stubs.h	2,671 B	[ EDIT ] \| [ DEL ]
📄 ipx.h	4,386 B	[ EDIT ] \| [ DEL ]
📄 iw_handler.h	21,413 B	[ EDIT ] \| [ DEL ]
📄 kcm.h	5,083 B	[ EDIT ] \| [ DEL ]
📄 l3mdev.h	6,743 B	[ EDIT ] \| [ DEL ]
📄 lag.h	409 B	[ EDIT ] \| [ DEL ]
📄 lapb.h	4,869 B	[ EDIT ] \| [ DEL ]
📄 lib80211.h	4,017 B	[ EDIT ] \| [ DEL ]
📄 llc.h	4,464 B	[ EDIT ] \| [ DEL ]
📄 llc_c_ac.h	9,537 B	[ EDIT ] \| [ DEL ]
📄 llc_c_ev.h	10,940 B	[ EDIT ] \| [ DEL ]
📄 llc_c_st.h	1,762 B	[ EDIT ] \| [ DEL ]
📄 llc_conn.h	4,155 B	[ EDIT ] \| [ DEL ]
📄 llc_if.h	2,210 B	[ EDIT ] \| [ DEL ]
📄 llc_pdu.h	14,783 B	[ EDIT ] \| [ DEL ]
📄 llc_s_ac.h	1,591 B	[ EDIT ] \| [ DEL ]
📄 llc_s_ev.h	2,255 B	[ EDIT ] \| [ DEL ]
📄 llc_s_st.h	947 B	[ EDIT ] \| [ DEL ]
📄 llc_sap.h	1,108 B	[ EDIT ] \| [ DEL ]
📄 lwtunnel.h	6,563 B	[ EDIT ] \| [ DEL ]
📄 mac80211.h	294,437 B	[ EDIT ] \| [ DEL ]
📄 mac802154.h	15,633 B	[ EDIT ] \| [ DEL ]
📄 mip6.h	1,617 B	[ EDIT ] \| [ DEL ]
📄 mld.h	2,870 B	[ EDIT ] \| [ DEL ]
📄 mpls.h	1,340 B	[ EDIT ] \| [ DEL ]
📄 mpls_iptunnel.h	827 B	[ EDIT ] \| [ DEL ]
📄 mptcp.h	6,242 B	[ EDIT ] \| [ DEL ]
📄 mrp.h	3,103 B	[ EDIT ] \| [ DEL ]
📄 ncsi.h	1,964 B	[ EDIT ] \| [ DEL ]
📄 ndisc.h	15,095 B	[ EDIT ] \| [ DEL ]
📄 neighbour.h	16,289 B	[ EDIT ] \| [ DEL ]
📄 net_failover.h	1,023 B	[ EDIT ] \| [ DEL ]
📄 net_namespace.h	14,177 B	[ EDIT ] \| [ DEL ]
📄 net_ratelimit.h	220 B	[ EDIT ] \| [ DEL ]
📄 netdev_queues.h	5,609 B	[ EDIT ] \| [ DEL ]
📄 netevent.h	1,044 B	[ EDIT ] \| [ DEL ]
📄 netlabel.h	21,236 B	[ EDIT ] \| [ DEL ]
📄 netlink.h	63,253 B	[ EDIT ] \| [ DEL ]
📄 netprio_cgroup.h	1,260 B	[ EDIT ] \| [ DEL ]
📄 netrom.h	7,896 B	[ EDIT ] \| [ DEL ]
📄 nexthop.h	865 B	[ EDIT ] \| [ DEL ]
📄 nl802154.h	12,385 B	[ EDIT ] \| [ DEL ]
📄 nsh.h	12,602 B	[ EDIT ] \| [ DEL ]
📄 p8022.h	447 B	[ EDIT ] \| [ DEL ]
📄 page_pool.h	6,985 B	[ EDIT ] \| [ DEL ]
📄 pie.h	3,684 B	[ EDIT ] \| [ DEL ]
📄 ping.h	3,197 B	[ EDIT ] \| [ DEL ]
📄 pkt_cls.h	26,178 B	[ EDIT ] \| [ DEL ]
📄 pkt_sched.h	6,543 B	[ EDIT ] \| [ DEL ]
📄 pptp.h	557 B	[ EDIT ] \| [ DEL ]
📄 protocol.h	4,320 B	[ EDIT ] \| [ DEL ]
📄 psample.h	1,083 B	[ EDIT ] \| [ DEL ]
📄 psnap.h	351 B	[ EDIT ] \| [ DEL ]
📄 raw.h	2,161 B	[ EDIT ] \| [ DEL ]
📄 rawv6.h	856 B	[ EDIT ] \| [ DEL ]
📄 red.h	11,600 B	[ EDIT ] \| [ DEL ]
📄 regulatory.h	10,961 B	[ EDIT ] \| [ DEL ]
📄 request_sock.h	6,871 B	[ EDIT ] \| [ DEL ]
📄 rose.h	7,802 B	[ EDIT ] \| [ DEL ]
📄 route.h	11,327 B	[ EDIT ] \| [ DEL ]
📄 rsi_91x.h	1,710 B	[ EDIT ] \| [ DEL ]
📄 rtnetlink.h	7,212 B	[ EDIT ] \| [ DEL ]
📄 sch_generic.h	33,841 B	[ EDIT ] \| [ DEL ]
📄 scm.h	3,671 B	[ EDIT ] \| [ DEL ]
📄 secure_seq.h	855 B	[ EDIT ] \| [ DEL ]
📄 seg6.h	1,874 B	[ EDIT ] \| [ DEL ]
📄 seg6_hmac.h	1,699 B	[ EDIT ] \| [ DEL ]
📄 seg6_local.h	870 B	[ EDIT ] \| [ DEL ]
📄 slhc_vj.h	6,831 B	[ EDIT ] \| [ DEL ]
📄 smc.h	2,155 B	[ EDIT ] \| [ DEL ]
📄 snmp.h	5,482 B	[ EDIT ] \| [ DEL ]
📄 sock.h	79,182 B	[ EDIT ] \| [ DEL ]
📄 sock_reuseport.h	1,565 B	[ EDIT ] \| [ DEL ]
📄 stp.h	383 B	[ EDIT ] \| [ DEL ]
📄 strparser.h	4,340 B	[ EDIT ] \| [ DEL ]
📄 switchdev.h	17,812 B	[ EDIT ] \| [ DEL ]
📄 tc_wrapper.h	7,033 B	[ EDIT ] \| [ DEL ]
📄 tcp.h	73,125 B	[ EDIT ] \| [ DEL ]
📄 tcp_states.h	1,540 B	[ EDIT ] \| [ DEL ]
📄 timewait_sock.h	1,136 B	[ EDIT ] \| [ DEL ]
📄 tipc.h	2,405 B	[ EDIT ] \| [ DEL ]
📄 tls.h	21,363 B	[ EDIT ] \| [ DEL ]
📄 tls_toe.h	3,006 B	[ EDIT ] \| [ DEL ]
📄 transp_v6.h	1,996 B	[ EDIT ] \| [ DEL ]
📄 tso.h	515 B	[ EDIT ] \| [ DEL ]
📄 tun_proto.h	988 B	[ EDIT ] \| [ DEL ]
📄 udp.h	16,481 B	[ EDIT ] \| [ DEL ]
📄 udp_tunnel.h	13,376 B	[ EDIT ] \| [ DEL ]
📄 udplite.h	3,762 B	[ EDIT ] \| [ DEL ]
📄 vsock_addr.h	662 B	[ EDIT ] \| [ DEL ]
📄 vxlan.h	13,541 B	[ EDIT ] \| [ DEL ]
📄 wext.h	1,510 B	[ EDIT ] \| [ DEL ]
📄 wimax.h	20,445 B	[ EDIT ] \| [ DEL ]
📄 x25.h	9,658 B	[ EDIT ] \| [ DEL ]
📄 x25device.h	387 B	[ EDIT ] \| [ DEL ]
📄 xdp.h	9,436 B	[ EDIT ] \| [ DEL ]
📄 xdp_priv.h	446 B	[ EDIT ] \| [ DEL ]
📄 xdp_sock.h	2,094 B	[ EDIT ] \| [ DEL ]
📄 xdp_sock_drv.h	6,423 B	[ EDIT ] \| [ DEL ]
📄 xfrm.h	59,628 B	[ EDIT ] \| [ DEL ]
📄 xsk_buff_pool.h	6,550 B	[ EDIT ] \| [ DEL ]

[ CLOSE ]

EDIT: dst_metadata.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __NET_DST_METADATA_H
#define __NET_DST_METADATA_H 1

#include <linux/skbuff.h>
#include <net/ip_tunnels.h>
#include <net/dst.h>

enum metadata_type {
	METADATA_IP_TUNNEL,
	METADATA_HW_PORT_MUX,
};

struct hw_port_info {
	struct net_device *lower_dev;
	u32 port_id;
};

struct metadata_dst {
	struct dst_entry		dst;
	enum metadata_type		type;
	union {
		struct ip_tunnel_info	tun_info;
		struct hw_port_info	port_info;
	} u;
};

static inline struct metadata_dst *skb_metadata_dst(const struct sk_buff *skb)
{
	struct metadata_dst *md_dst = (struct metadata_dst *) skb_dst(skb);

if (md_dst && md_dst->dst.flags & DST_METADATA)
		return md_dst;

return NULL;
}

static inline struct ip_tunnel_info *
skb_tunnel_info(const struct sk_buff *skb)
{
	struct metadata_dst *md_dst = skb_metadata_dst(skb);
	struct dst_entry *dst;

if (md_dst && md_dst->type == METADATA_IP_TUNNEL)
		return &md_dst->u.tun_info;

dst = skb_dst(skb);
	if (dst && dst->lwtstate &&
	    (dst->lwtstate->type == LWTUNNEL_ENCAP_IP ||
	     dst->lwtstate->type == LWTUNNEL_ENCAP_IP6))
		return lwt_tun_info(dst->lwtstate);

return NULL;
}

static inline bool skb_valid_dst(const struct sk_buff *skb)
{
	struct dst_entry *dst = skb_dst(skb);

return dst && !(dst->flags & DST_METADATA);
}

static inline int skb_metadata_dst_cmp(const struct sk_buff *skb_a,
				       const struct sk_buff *skb_b)
{
	const struct metadata_dst *a, *b;

if (!(skb_a->_skb_refdst | skb_b->_skb_refdst))
		return 0;

a = (const struct metadata_dst *) skb_dst(skb_a);
	b = (const struct metadata_dst *) skb_dst(skb_b);

if (!a != !b || a->type != b->type)
		return 1;

switch (a->type) {
	case METADATA_HW_PORT_MUX:
		return memcmp(&a->u.port_info, &b->u.port_info,
			      sizeof(a->u.port_info));
	case METADATA_IP_TUNNEL:
		return memcmp(&a->u.tun_info, &b->u.tun_info,
			      sizeof(a->u.tun_info) +
					 a->u.tun_info.options_len);
	default:
		return 1;
	}
}

void metadata_dst_free(struct metadata_dst *);
struct metadata_dst *metadata_dst_alloc(u8 optslen, enum metadata_type type,
					gfp_t flags);
void metadata_dst_free_percpu(struct metadata_dst __percpu *md_dst);
struct metadata_dst __percpu *
metadata_dst_alloc_percpu(u8 optslen, enum metadata_type type, gfp_t flags);

static inline struct metadata_dst *tun_rx_dst(int md_size)
{
	struct metadata_dst *tun_dst;

tun_dst = metadata_dst_alloc(md_size, METADATA_IP_TUNNEL, GFP_ATOMIC);
	if (!tun_dst)
		return NULL;

tun_dst->u.tun_info.options_len = 0;
	tun_dst->u.tun_info.mode = 0;
	return tun_dst;
}

static inline struct metadata_dst *tun_dst_unclone(struct sk_buff *skb)
{
	struct metadata_dst *md_dst = skb_metadata_dst(skb);
	int md_size;
	struct metadata_dst *new_md;

if (!md_dst || md_dst->type != METADATA_IP_TUNNEL)
		return ERR_PTR(-EINVAL);

md_size = md_dst->u.tun_info.options_len;
	new_md = metadata_dst_alloc(md_size, METADATA_IP_TUNNEL, GFP_ATOMIC);
	if (!new_md)
		return ERR_PTR(-ENOMEM);

memcpy(&new_md->u.tun_info, &md_dst->u.tun_info,
	       sizeof(struct ip_tunnel_info) + md_size);
#ifdef CONFIG_DST_CACHE
	/* Unclone the dst cache if there is one */
	if (new_md->u.tun_info.dst_cache.cache) {
		int ret;

ret = dst_cache_init(&new_md->u.tun_info.dst_cache, GFP_ATOMIC);
		if (ret) {
			metadata_dst_free(new_md);
			return ERR_PTR(ret);
		}
	}
#endif

skb_dst_drop(skb);
	skb_dst_set(skb, &new_md->dst);
	return new_md;
}

static inline struct ip_tunnel_info *skb_tunnel_info_unclone(struct sk_buff *skb)
{
	struct metadata_dst *dst;

dst = tun_dst_unclone(skb);
	if (IS_ERR(dst))
		return NULL;

return &dst->u.tun_info;
}

static inline struct metadata_dst *__ip_tun_set_dst(__be32 saddr,
						    __be32 daddr,
						    __u8 tos, __u8 ttl,
						    __be16 tp_dst,
						    __be16 flags,
						    __be64 tunnel_id,
						    int md_size)
{
	struct metadata_dst *tun_dst;

tun_dst = tun_rx_dst(md_size);
	if (!tun_dst)
		return NULL;

ip_tunnel_key_init(&tun_dst->u.tun_info.key,
			   saddr, daddr, tos, ttl,
			   0, 0, tp_dst, tunnel_id, flags);
	return tun_dst;
}

static inline struct metadata_dst *ip_tun_rx_dst(struct sk_buff *skb,
						 __be16 flags,
						 __be64 tunnel_id,
						 int md_size)
{
	const struct iphdr *iph = ip_hdr(skb);

return __ip_tun_set_dst(iph->saddr, iph->daddr, iph->tos, iph->ttl,
				0, flags, tunnel_id, md_size);
}

static inline struct metadata_dst *__ipv6_tun_set_dst(const struct in6_addr *saddr,
						      const struct in6_addr *daddr,
						      __u8 tos, __u8 ttl,
						      __be16 tp_dst,
						      __be32 label,
						      __be16 flags,
						      __be64 tunnel_id,
						      int md_size)
{
	struct metadata_dst *tun_dst;
	struct ip_tunnel_info *info;

tun_dst = tun_rx_dst(md_size);
	if (!tun_dst)
		return NULL;

info = &tun_dst->u.tun_info;
	info->mode = IP_TUNNEL_INFO_IPV6;
	info->key.tun_flags = flags;
	info->key.tun_id = tunnel_id;
	info->key.tp_src = 0;
	info->key.tp_dst = tp_dst;

info->key.u.ipv6.src = *saddr;
	info->key.u.ipv6.dst = *daddr;

info->key.tos = tos;
	info->key.ttl = ttl;
	info->key.label = label;

return tun_dst;
}

static inline struct metadata_dst *ipv6_tun_rx_dst(struct sk_buff *skb,
						   __be16 flags,
						   __be64 tunnel_id,
						   int md_size)
{
	const struct ipv6hdr *ip6h = ipv6_hdr(skb);

return __ipv6_tun_set_dst(&ip6h->saddr, &ip6h->daddr,
				  ipv6_get_dsfield(ip6h), ip6h->hop_limit,
				  0, ip6_flowlabel(ip6h), flags, tunnel_id,
				  md_size);
}
#endif /* __NET_DST_METADATA_H */